Clutch device.



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, wit the member A. With these parts may said shoulder prevents therotation of the shaft 1 and driven member.

.Stateof New Jersey, have invented certain vices, of which the followingis a-specificashown in Fig. 5; and Fig. 7 is a section on the UNITED.sTA rEs PATENT OFFICE.

ARTHURPENTECOST, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO PIKE ADDINGMACHINE COMPANY, OF ORANGE, NEW JERSEY, A CORPORATION OF NEW JERsEY.

Specification of CLUTCH DEVICE.

Letters Patent. Patented Oct. 23, 1906.

I Application filed July 24, 1905. Serial No. 271.079.

Be it known that I, ARTHUR PENTEcosT, a subject of. the King of GreatBritain, residing at East Orange, in the county of Essex and new anduseful Improvements in Clutch Detion.

My invention relates to clutch devices foruse in connection with acontinuously-moving driving member and w1th a driven member which isrequired to be rotated from the driving member and arrested'at or beforecompleting a rotation; and my invention consists of means for drivingthe driven member by frictional contact during part of its rotation andpositively during the remaining part, as fully set forth hereinafter andillustrated in the accompanying drawings, in which- Figure 1 is an endelevation of my clutch device. Fig. 2 is a plan of Fig. 1. i Fig. 3 is aside view; Fig. 4, a plan of the driving member. Fig. 5 is an edge viewof a part of the device. Fig. 6 is a side view of the part line 77, Fig.3.. v

v The clutch device has a driving member A, to which constant rotationis imparted from any suitable source, and a driven member B, togetherwith means whereby the latter may be ut into and out of 0 'erativeconnection be combined means whereby the driven member may be arrestedand released, being preferably arrested at the termination of eachcomplete rotation. As shown, the driven member has a shaft 1, on whichis mounted a disk 2, having an abrupt shoulder as, and a hinged pawl 3when its end is in contact with I Between the driving and driven membersmtervenes a friction-bearing, whereby norare prevented from turningdisks being clamped together by means of spring-lingers e on a disk E,the pressure of which may be ap lied and varied by a nut 7, turning onthe t readed end of the shaft 1. It will be understood that the disk 5is loosely mounted on the shaft 1, while the disks 6 6 independently ofsaid shaft. 1

The shaft 4 of the driving member has a muff 9 with recesses 10, ada'ted to receive lugs 12 on the disk 5, so that t e latter will be turnedwith the driving member, and the driven member will be turnedfrictionalli; until the contact of thepawl 3 with the s 0111- (bier xarrests the rotation of the driven memer. a

When friction alone is depended upon to operatively connect the twomembers, unusual resistance in the apparatus driven may overcome thefriction between the two members and lead to detrimental lost motion. Toavoid this, I provide means whereby the two members are positivelyconnected when the driven member begins to move under the influence ofthe driver. Thus the driving member has shoulders y at the edge of themuff 9, and the driven member-carries a pivoted dog 13, which when thedriven member is at rest is out of operative position, the operating endelevated by the contact of the tail of the dog with. a cam projection 14on the frame or part X, in which the shaft 1. has its bearing. When,however, the detentpawl 3 is elevated, permitting the shaft 1 to rotate,driven by the constantly-maintained friction from the shaft 4, the tailof the dog will be carried from the cam 14, and the other end of the dogwill be forced inward by a spring 15 into position to engage the nearestthen drive the driven member positively during the remainder and workingpart of the revolution.

mally the driven members would be carried with the driver and of acharacter to maintain a constant stress tending to rotate the drivenmember by the driving member. Various friction driving means might beused; but, as shown, the shaft 1 of the driven member carries twofriction-disks 6 6, between which is arranged a disk 5, connectedwith Asthe dog approaches the cam projection 14 as the rotation of the drivenmember is completed, it will strike the lug thereof and will bedisengaged from the driving member, which by its frictional connectionwith the driven member will complete the rotation of shoulder 7 of thedriving device, which will the driven member until the shoulder a;

strikes the detent 3. It will be seen that owing to the frictionalconnectionbetween the the shaft 4, as hereinafter described, saidtwoparts when one of them is arrested the arrest Wi ll be less violentand with less shock than if the )ositive connectionwas maintained untiltilerotationwaseompleted. This connection alse arrests the reboiind ofthe driven member which occurs when such member is brou ht against thestop,3.

It will be evident that dill'erent means for maintaining a constantfrictional connection. between the two members maybe used also, that thestop device and the lock forloeking the two parts positively together,as well as the means of shifting the lock, may be varied Withoutdeparting from the main features of my invention.

Without limiting myselfto the construction shown, I claim- 1. A clutch.device having a driving and a driven member and friction connectionbetween them arranged to maintain the driven member under constantrotative stress, and means for positively connecting, and disconnectingsaid rotation, substantially as set forth.

2. The combination in a clutch device, of a driving member, a drivenmember, means connecting the two members frictionally together arrangedto n'iaintain the driven member under constant rotative stress, a devicefor lockin r the two members positively, and means iors lifting saiddevice to unlocking and then to locking osition at each completerotation, substantiai ly as set forth.

3. The combination in a clutch device, of a driving member, a drivenmember, means connecting the two members frictionally together, a dogcarried by one member and shoulders on the other adapted to be engagedby the dog, and means for shifting the dog out of and into lockingposition at each rotation, substantially as set forth.

4. The combination in a clutch device, of a driving member, a drivenmember, means connecting the two members frictionally together, a dogcarried by one member and members during a part of each shoulders on theother ada ted to be engaged by the dog, and a cam for siiifting the dogout of and into locking position at each rotation. substantially as setforth.

5. A clutch device having a driving and a driven member and frictionconnection between them arranged to maintain the driven member underconstant rotative stress, means for positively connecting anddisconnecting said members during a )art of each. rotation, and amovable detent for arresting the rotation of the driven member,substantially as set forth.

6. The con'ibination with the driven and drivingmembers of a clutchdevice and with means for frictionally connecting them arranged tomaintain the driven n'iembcr under constant rotative stress, of amovable detent for arresting the driven member at the end of eachrotation, and means for locking the two members positively togetherafter shifting the detent and on the beginning of rotation of the drivenmember, substantially as set forth.

7. The combination with the driven and driving members of a clutchdevice, and with means for frictionally connecting them arranged tomaintain the driven member under constant rotative stress, of a movabledetent for arresting the driven member at the end of each rotation, andmeans for locking the two members positively together after shifting thedetent and on the beginning of rotation ofthe driven member, and forunlocking the two members prior to completing said rotation,substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ARTHUR PEN TECOST.

Witnesses:

W. J. WARD, E. O. BOTAILLE.

